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Find your Hawaii tax account info

Set up an existing company

Businesses that have run payroll in Hawaii in the past can find their Tax ID on notices received from the Hawaii Department of Taxation, such as the Withholding Tax Return (Form HW-14), or by calling the agency at (800) 222-3229. The Hawaii Withholding ID number format is WH-000-000-0000-01 (or -02). The agency is no longer accepting customer IDs formatted as W00000000-00. If you have a number that starts with a W, you can find your new ID number by visiting this website and entering your old ID number
   
You can find your UI Account Number on notices received from the Hawaii Department of Labor and Industrial Relations, such as the Contribution Rate Notice, Quarterly Wage Report (Form UC-B6), or by calling the agency at (808) 586-8914. 

Contribution Rate: You can find your Contribution Rate on the Contribution Rate Notice that you have received from the Hawaii Department of Labor and Industrial Relations. It ranges from 0.0% – 5.6%, with a wage base of $45,900 in 2018. Please do not include the E&T rate component. If you're unsure, verify your rate by calling the agency at (808) 586-8915.